steiner



y a G. STEINER. V SHORT CIRCUIT TERMINAL FOR THE MAGNETO-ELECTRIC IGNIT ION APPARATUS OF INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 28. 1920.

PatentedSept. 12, 1922. I

Imam Z 5 012/112 Patented se c 12, 192% GQTTLZEE STEINER, QF fiQ-LQTEURH, SWETZERLAND, ASEiIIG-HOE, EHE EGIN'IILLA, OF SQLQTHUEN, SWITZERLAND,

sJIoRs-cmccm TERMINAL scs. THE mecism'c-cnsc'rmc EGi-H'ITIGN mess-sews cs 7 ETERNAE-CGMBUSTIEQN ENGINES.

cppiicstios filed may 2e,

To cit 'wkam it may co'mce'm 'Be it known thet L GoITLmc STEINER, e citizen of the Swiss ltepublig snot. residing at @hech' 30 i Soiothurn, Switzerland, heve invented certsin new end useful IIHP-IGVGK meme in Sheet-Circuit Temninsis for :the Ii'iegnetc-Eieqtric Ignition. .[ippsretss cf linterneiflcmhustiou Engines, of which the fclicwing is s, specification:

In connection with the magneto-electric apparatus of internal combustion engines it is customary, for the purpose of enabling; the ignition cf the engine to he picventeci et wiii in case cf necessity, to provide e com tact piece by means of which the primery coii cf the ignition apparatus can be short circuite i from the outside, for instance from the i iveifs scctin the cese of mote-i" cars. From this contact piece, :1 cehie is ieci into the casingcf the igniticn eppcmtus Where it ccnnectei electrically to the non-esrthcd end. of the primacy ccii.

The present inventionhcs for its object to pr vicic an improved construction of the ieiitiilfg-in tcrminei (known in the trade es s short-circuit terminal) for the seici cable, hy'mesms of which the cehleisconnccted to the primary ignition coil.

The improved terminal ccnsists of a mctei hotiy projecting into the interim of the easing of the igniticn, eppecetus and! fixe in en insuicteoi menses on the inside cf the said casing, and of an insiiieting sleeve which is selected to he screwed into the said; metsi hcciy from the outsiie by mesns cf? a screwflIIQiLCi that is sigiiy fixed to the seid sieeve.

A tciminsi cf this kind is iiiustrctcd 'hy we of c, constructional example of the pres ent invention in the accompanying drawings in which Figure 1 is a, cross secticn;

Figure 2 is an elevction viewed f om the insiee cf the cesingcnd Figure 3 is a plan partly in section taken through the attaching and} jointing parts.

In the cxcmpie, the mete! body a is in- Sula-ted from the bearing piste m of the ig niticn cppemtus by means (if the insulating weshers and short tubes 5 c 0? anti is attecheci by means of screws c fscm the inside to the front walla-f the heecing piste m.

is is the contact piece which hecrs against a centred-projection of the metal bociy a and 1920 serial N0: 385,357.

which is connecteci to cove end of the primei'y coil of the fixed ignition. Wilding;

The insuieting sleeve 9 with the instal screw-thread in is screwed from the outsicie of the hearing piste cm into the contact body at; the short-ciccsit cable 21 being fixed in the central bore of the said sleeve A. felt Wesher f cicses the. joint between the hearing piste m, the insuiating phig g and the metal. body 0; against the entry of dust and dirt. A. pointed member 2 serves es en electrode for safety spsrking gep which comes intcccticn on the cccunence of 2m excess of poteiitiei or in the case cf the sparking plug becoming defective,

Having now descriheei my invention what I cisim as new and desire to SGCUEG by Letters Patent is l. short circcitiiig device fer the pith mery Winding of the magnets electric ignition apparatus of interns? combustion engines, including an intcrneliy screweci metal socket fixed inv an insuieteei manner inside the magnets casing e cyiindiicei mete]. piece externeiiy screwmi for co-ectirog with sehi internaiiy screwed; socket enci conecting one end of it short circuiating cab-1e to sefi intemeiiy screwed. socket and e cyiindricei extension, formeii, of insulating materieh of said externally screwed metal piece external to seid magneto casing and pertiy enciosing emci rigidly MCiJQLChGCi. to Sititi eistei naily screwed mete piece, the sei i short circuitingvcehie trsversing seidl estemiziiy screwed cyiinfiriccl metal piece and its insoietai extension in an exisi direction thus permit tingof the simultaneous ettechment or removal of the cable the scid. 'externeiiy screwed metei piece with its insulates exten= sicn.

2. A short circuiting device for the primary winding of the magneto electric igniticn apparatus of internei comhustion.-.- en:- gines including an interneiiy'screwed metci socket fixed in an insuiatefi menus!" inside the magneto casing a cylindrical mete}. piece externeliy screwed forco ecting with said internaiiy screwed socket and connecting one end of a short circuitingcshieci tc; {seid in ternally screweci socket, s cyiimiiicsi extension formed of insulating metcr'iei cf ssic; externally screwed; metei' piece extemei to said magneto casing andi pcrtiycnciosing Q 1 ,eespee and rigidly attached to said externally screwed metal piece with its insulated exscrewed metal piece, the said short circuittension, and a pointed projection on said ing cable traversing said externally screwed metal socket adapted to serve as an electrode 50 cylindrical metal p1ece and'its insulated exfor a safety sparking gap.

tension in an axial direction, thus permit- In testimony whereof I have signed my ting ot' the simultaneous attachment or rename to this specification.

moval .cf the cable and the said externally G. STEINER. 

